Setting get_queried_object

2 comments

1. As per its laconic source:

   function get_queried_object() {
       global $wp_query;
       return $wp_query->get_queried_object();
   }
   

   This function retrieves object from main query. As such it is affected by anything that changes main query. From your list that would be query_posts() (reason number umpteen it should not be used).

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2. All those query calls you mentioned are wrappers around WP_Query ( except wp_query which is itself WP_Query, no wrappers necessary )

   So get_queried_object refers to the main query and calls $wp_query->get_queried_object();

   Which we can find here:

   http://core.trac.wordpress.org/browser/tags/3.5.1//wp-includes/query.php#L2987

   function get_queried_object() {
       if ( isset($this->queried_object) )
           return $this->queried_object;
   
       $this->queried_object = null;
       $this->queried_object_id = 0;
   
       if ( $this->is_category || $this->is_tag || $this->is_tax ) {
           $tax_query_in_and = wp_list_filter( $this->tax_query->queries, array( 'operator' => 'NOT IN' ), 'NOT' );
   
           $query = reset( $tax_query_in_and );
   
           if ( 'term_id' == $query['field'] )
               $term = get_term( reset( $query['terms'] ), $query['taxonomy'] );
           elseif ( $query['terms'] )
               $term = get_term_by( $query['field'], reset( $query['terms'] ), $query['taxonomy'] );
   
           if ( ! empty( $term ) && ! is_wp_error( $term ) )  {
               $this->queried_object = $term;
               $this->queried_object_id = (int) $term->term_id;
   
               if ( $this->is_category )
                   _make_cat_compat( $this->queried_object );
           }
       } elseif ( $this->is_post_type_archive ) {
           $this->queried_object = get_post_type_object( $this->get('post_type') );
       } elseif ( $this->is_posts_page ) {
           $page_for_posts = get_option('page_for_posts');
           $this->queried_object = get_post( $page_for_posts );
           $this->queried_object_id = (int) $this->queried_object->ID;
       } elseif ( $this->is_singular && !is_null($this->post) ) {
           $this->queried_object = $this->post;
           $this->queried_object_id = (int) $this->post->ID;
       } elseif ( $this->is_author ) {
           $this->queried_object_id = (int) $this->get('author');
           $this->queried_object = get_userdata( $this->queried_object_id );
       }
   
       return $this->queried_object;
   }
   

   So the arguments passed in and how many iterations of the loop you’ve gone through are the determining factors.

   TDLR: Just followed the code, most IDEs have a jump to definition button that would take you directly there

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